expectedprimary-expressionbeforexxtoken错误处理expected primary-expression before xx token 这个xx指的是⼀半都是运算符,⽐如++,—等 错误的原因是:把类型(type)当成变量来⽤了(variable)⼀般来说,常见的int,double这种基本的类型是不会错的,因为有语法⾼亮很明显,但是如果是⾃⼰定义的类型,就...
expected primary-expression before '.' token是指缺少申明,需要申明变量。解决方法:LOG(INFO)的头函数为:logging,新建文件my_dbclient.h my_dbclient.cpp 作为自定义的接口,具体实现如下:my_dbclient.h [cpp] view plain copy #include <iostream> include <vector> include //注意:这里并...
意思是:在"{"的前面少了一个“;”,把“;”补上,错误即可消失。错误示例:1、error: expected expression before ‘/’ token和In function ‘main’.意思是:C++的语法错误。2、expected initializer before '<' token.意思是:借鉴里面没有指定名字空间的问题,重新把boost库的路径放到了程序的...
../../include/dos_inc.h:543:78: error: expected primary-expressionbefore‘,’ tokenvoidSetFileName(charconst*const_name) { MEM_BlockWrite(pt+offsetof(sMCB,filename),_name,8); } ...(省略) cpu.cpp: In memberfunction‘voidTaskStateSegment::Get_SSx_ESPx(Bitu, Bitu&, Bitu&)’: cpu.c...
int main(void){ int j,a[10]={1,2,0,0,4,5,6,9,9,17};for(j=0;j<10;j++)print_array(a,10); \\这里改为调用数组名就可以了 max_array(a,10); \\这里改为调用数组名 return 0;} void print_array(int a[],int arraysize){ static int i=0;printf("%d",a[i]);i+...
要么去掉分号,改成如下:cout<<"A 1-character name? Hmm,have you read Kafka?:"<<"hello,"<< user_name <<endl;要么改成如下:cout<<"A 1-character name? Hmm,have you read Kafka?:" ;cout <<"hello,"<< user_name <<endl;
c语言中不等于符号是!=只要一个等于号就好
} //这里把1/2改成1.0/2};class Rectangle:public Firgure{public: Rectangle(float a,float b): Firgure(a,b){}virtual float area() const{return x_size*y_size;}};class Circle:public Firgure{public: Circle(float a,float b): Firgure(a,b){}virtual float area() const{r...
你这个函数没定义,就拿来调用了。
[Error] expected primary-expression before ';' token ,错误类似这个,求原因及解答 #include<iostream>usingnamespacestd;classFirgure{protected:floatx_size;floaty_size;public:Firgure(floata,floatb){x_size=a;y_size=b;}virtualfloatarea()const=0;};classTrian..